金属 库存总量 注销仓单 注销占百分比 铜 149,900 20,125 13.43% 铝 4,563,875 2,631,450 57.66% 铅 225,200 6,050 2.69% 锌 734,525 147,200 20.04% 锡 9,225 290 3.14% 镍 365,148 87,390 23.93%